In order to prove to Yuri that they are actually a married couple, Loid and Yor are supposed to kiss. Loid is willing to get this done immediately for the sake of Operation Strix, but Yor can't do this sober, so she ends up downing a bunch of wine and gets drunk.  Yuri sees his sister this way, also gets drunk, and is unable to make rational decisions anymore...
I can't kiss or even cook.
.لا أستطيع التّقبيل ولا الطّبخ حتّى
No consigo besarlo,
no consigo cocinar bien…
No consigo besarlo,
no consigo cocinar bien…
Je ne peux ni cuisiner
ni l’embrasser.
Non so baciare e non so cucinare...
Não sei beijar nem cozinhar.
Я ни целоваться не умею,
ни даже готовить.